CA1079108A - Light tight film holder for processing roll film - Google Patents
Light tight film holder for processing roll filmInfo
- Publication number
- CA1079108A CA1079108A CA289,917A CA289917A CA1079108A CA 1079108 A CA1079108 A CA 1079108A CA 289917 A CA289917 A CA 289917A CA 1079108 A CA1079108 A CA 1079108A
- Authority
- CA
- Canada
- Prior art keywords
- film
- rotary shaft
- hollow body
- disc
- slit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000012545 processing Methods 0.000 title description 2
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 230000000875 corresponding effect Effects 0.000 claims 1
- 230000035515 penetration Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 3
- 102100025490 Slit homolog 1 protein Human genes 0.000 description 1
- 101710123186 Slit homolog 1 protein Proteins 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
- G03D13/02—Containers; Holding-devices
- G03D13/04—Trays; Dishes; Tanks ; Drums
- G03D13/06—Light-tight tanks with provision for loading in daylight
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photographic Developing Apparatuses (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A device for developing a photographed film by rolling up and down the film in a liquid developer is provided, which comprises a hollow body opened at the lower end thereof, a rotary shaft axially extending through the hollow body to be slidable thereto and having a length long enough to extend beyond the lower free end of the hollow body, and a disc attached to the lower end of the rotary shaft and adapted to close the lower end of the hollow body when the rotary shaft is raised to a predeter-mined level.
A device for developing a photographed film by rolling up and down the film in a liquid developer is provided, which comprises a hollow body opened at the lower end thereof, a rotary shaft axially extending through the hollow body to be slidable thereto and having a length long enough to extend beyond the lower free end of the hollow body, and a disc attached to the lower end of the rotary shaft and adapted to close the lower end of the hollow body when the rotary shaft is raised to a predeter-mined level.
Description
Background of the Invention This invention relates to a film developing device of the type which can develop a photographed roll of film by rolling up and down the film repeatedly in turn in a liquid deveioper and more particularly, to a device which can develop the film in a light place without exposing the film to light.
In a known film developing device of this type, a cassette or magazine taken out of a camera and containing a photo-graphed roll of film therein is immersed as it is into a developer casing. The photographed roll of filn, is developed l~y rotatillg a spool of the magazine in the clochwise and counterclockwi~e directions repeatedly in turn for the predetermirled nl-ml~c~r of rotations to roll up and down the fil;n in the developel.
Ilowever, in the most of the roll films sold in the market, the inner end of the film is connect-ed to the spool of the magazine by an adhesive tape only, so that while the film is being developed by rolling up and down the film in the liquid developer, it has been e~peri-enced that the adhesive tape be separated from the spool to make it impossible to roll up and down the film any more. Such separation of the adhesive tape has often oceured in the developing process of a eoloured film which requires a relatively long pro-cessing period of time compared with that of a mono-chrome film. Further, in the Icnown film developirlg dev:iee, the liquid clevel(>per ix allowecl to pern-(a(e into the magazine only through a narlow film passaOe or outlet at the eircumferenee of the magazine.
Aeeordingly, the permeation of the developer into the magazine is relatively slow w}-en the magazitle is im-mersed into the developer, and also the drainage of the developer from the magazine is insufficient when the magazine is taken out of the developer. Tlms, the known developing deviee could ~IOt be ada~te(l wi-th satisfaetion for developillg a coloul-ecl roll oL rilm, which rcquires to successively imlller~e the f`ilm into plural proeessirlg ]iquids without delay.
Brief Summarv of the Invention Accordingly, an object of the present invention is to provide a film develop;ng device which can certainly develop a roll of film in a light place by rolling up and down the film in a developcl~.
Another object of the presellt inventioll is to provide a film developing device suited for developing a coloured film.
A further object of the present invention is to provide a film developing device which allows immediate permeation and drainage of a developer into and out of a space around the film.
According to the present invention, a device for developing a photographed film by rolling up and down the film in a liquid developer comprises a hollow body opened at thc lower elld thereof~ a rotary sllaft axially extending through the hollow body to be slidable thereto and having a length long enough to extend beyond the lower free end of the hollow body, and a disc attached to the lower end of the rotary shaft and adapt~d to close the lower end of the hollow body when the rotary shaft is raised to a predetermined level.
Preferably, the disc has apertures on the upper and lower surfaces thereof, whic}l are commullicated with each other by bent passages not to allow li~ll-t to be penctrated from the aperture on onc surface to thc other aperture on the other surface.
The rotary shaft may have all annular platc attachcd thereto above the disc with a space subst<lllti.llly correspolldillg to a widtll of the film to be dcveloped, the anll-llar plate l1aVil1g a diilmeter smallcl- tllall ~hat of the hollow body.
Other objects and features of the presellt invelltion will become apparent from the following detailed deseription of preferred embodimellts thereof whell ta~ell in conjunction with the accompanyillg drawi llgS, ill W}liC]l Brief Description of the Drawin~s Fig. 1 is a par-tially sectioned perspective view showing a film developing device according to an em-bodiment of the present inven-tion, Fig. 2 is a vertical sectional view of the device shown in Fig. 1, Fig. 3 is a perspective view of thea same device showing the manner of winding a photograplled film in a magazine to a rotary shaft of the device, Fig. 4 is a vertical sectional view of the same device showing the rotatry shaft raised to a prede-termined level after winding the film thereabout~
Fig. 5 is a vertical sectional view showing the same device used -to develop the film in a developer casing, and Fig. 6 is a partially sectioned perspective view showing another embodiment of the presellt clevicc.
Detailecl l)escr~ tioll of the Inv(~lltion Referring now to a first clllbod:imellt of` the plesellt inverltioll shown itl ~igS. 1 and 2, a film devcloping device 1 comprises a hollow body 2 having a cylinclrical si.de wall 3, the uppcr end of which is clo.sed by an integral annular cover plate 4 but the lowcr encl of which is open. 'rhe hollow body ~ also has a skirt-shaped flange 5 integrally connccted to the cylindrical side wall 3. The hollow body 2 is ma(te o~ mat,crial impenetrable -to light.
A rotary shaft 6 is provided at the a~ial center part of the hollow body 2 and slidably extellds through the annular cover plate 4. The rotary shaft 6 has a length substantially twice as long as thc a~ial length of the hollow body but may have the length much longer than the twice thereof. Provided at the lower end of the rotary shaft 6 is an end disc 7 having a diameter slightly larger than the inner diameter of thc cylin-drical side wall 3 so as to close the lower end of the cylindrical side wall 3 when the rotary shaft 6 is raised to a predetermined level. The end disc 7 has small apertures 8 and 9 on the upper and lower surfaces thereof, which are communicated with each othcr by angled or bent passages 10 so as not to allow any light from the lowcr surface of the disc 7 to bc penc-trated to the upper surfacc thcreof. 'ilhe rotary ~haft 6 is ~lso provided at the intermecliatc portion thereof with an annular plate 11, the diameter of wllicll i.s .~light;ly smaller than thc inllcr d:iamcl,el o~ t,hc cylill(l~ical .s:idc wall 3 so as to bc inserted into the hollow bocly 2 wlle the rotary shaft 6 is raiscd upwal-~lly. ~'hc xpacc 1079~08 bctweell the e1lcl d:isc ~ and anl-ular plate 11 is made to substantially corrcspond to thw width of a film to be developcd. The lowcr part of the rotary s}laft 6 between the end disc 7 and tlle annular plate 11 is providcd with a slit 12 into which an end of the film is inserted and held as described hereinafter. Also providcd at the upper end of the rotary shaft 6 is a rotary disc 13 upon which a rotary knob 14 is ecccntrically mounted, so that by rotating the knob 14, the shaft 6 is rotated together with the rotary disc 13.
Preferably, the end disc 7 is providcd witll an upwardly projecting annular thin flexible flange 15 and the lower open end of the cylindrical side wall 3 is provided with an annular projecting rim 16, wllerein the diameter of the flange is made slightly smaller than that of the rim 16. Accordingly, when the rotary shaft 6 is raised upwarclly, the upper end of the flange lS comes to contact with the lower end of the rim 16 and is then snugly engaged therewith by snap action.
P~eference is now made to the manner of usage of the present film developing device with reference to Figs. 3 through 5.
The rotary shaft 6 of the present device ta1~es a lowered position as shown in F`ig. 3, in whic}- -the lower part of the rotary shaft betweell the end disc 7 and the annular plate 11 is exposed outsidc of th~ llollow body
In a known film developing device of this type, a cassette or magazine taken out of a camera and containing a photo-graphed roll of film therein is immersed as it is into a developer casing. The photographed roll of filn, is developed l~y rotatillg a spool of the magazine in the clochwise and counterclockwi~e directions repeatedly in turn for the predetermirled nl-ml~c~r of rotations to roll up and down the fil;n in the developel.
Ilowever, in the most of the roll films sold in the market, the inner end of the film is connect-ed to the spool of the magazine by an adhesive tape only, so that while the film is being developed by rolling up and down the film in the liquid developer, it has been e~peri-enced that the adhesive tape be separated from the spool to make it impossible to roll up and down the film any more. Such separation of the adhesive tape has often oceured in the developing process of a eoloured film which requires a relatively long pro-cessing period of time compared with that of a mono-chrome film. Further, in the Icnown film developirlg dev:iee, the liquid clevel(>per ix allowecl to pern-(a(e into the magazine only through a narlow film passaOe or outlet at the eircumferenee of the magazine.
Aeeordingly, the permeation of the developer into the magazine is relatively slow w}-en the magazitle is im-mersed into the developer, and also the drainage of the developer from the magazine is insufficient when the magazine is taken out of the developer. Tlms, the known developing deviee could ~IOt be ada~te(l wi-th satisfaetion for developillg a coloul-ecl roll oL rilm, which rcquires to successively imlller~e the f`ilm into plural proeessirlg ]iquids without delay.
Brief Summarv of the Invention Accordingly, an object of the present invention is to provide a film develop;ng device which can certainly develop a roll of film in a light place by rolling up and down the film in a developcl~.
Another object of the presellt inventioll is to provide a film developing device suited for developing a coloured film.
A further object of the present invention is to provide a film developing device which allows immediate permeation and drainage of a developer into and out of a space around the film.
According to the present invention, a device for developing a photographed film by rolling up and down the film in a liquid developer comprises a hollow body opened at thc lower elld thereof~ a rotary sllaft axially extending through the hollow body to be slidable thereto and having a length long enough to extend beyond the lower free end of the hollow body, and a disc attached to the lower end of the rotary shaft and adapt~d to close the lower end of the hollow body when the rotary shaft is raised to a predetermined level.
Preferably, the disc has apertures on the upper and lower surfaces thereof, whic}l are commullicated with each other by bent passages not to allow li~ll-t to be penctrated from the aperture on onc surface to thc other aperture on the other surface.
The rotary shaft may have all annular platc attachcd thereto above the disc with a space subst<lllti.llly correspolldillg to a widtll of the film to be dcveloped, the anll-llar plate l1aVil1g a diilmeter smallcl- tllall ~hat of the hollow body.
Other objects and features of the presellt invelltion will become apparent from the following detailed deseription of preferred embodimellts thereof whell ta~ell in conjunction with the accompanyillg drawi llgS, ill W}liC]l Brief Description of the Drawin~s Fig. 1 is a par-tially sectioned perspective view showing a film developing device according to an em-bodiment of the present inven-tion, Fig. 2 is a vertical sectional view of the device shown in Fig. 1, Fig. 3 is a perspective view of thea same device showing the manner of winding a photograplled film in a magazine to a rotary shaft of the device, Fig. 4 is a vertical sectional view of the same device showing the rotatry shaft raised to a prede-termined level after winding the film thereabout~
Fig. 5 is a vertical sectional view showing the same device used -to develop the film in a developer casing, and Fig. 6 is a partially sectioned perspective view showing another embodiment of the presellt clevicc.
Detailecl l)escr~ tioll of the Inv(~lltion Referring now to a first clllbod:imellt of` the plesellt inverltioll shown itl ~igS. 1 and 2, a film devcloping device 1 comprises a hollow body 2 having a cylinclrical si.de wall 3, the uppcr end of which is clo.sed by an integral annular cover plate 4 but the lowcr encl of which is open. 'rhe hollow body ~ also has a skirt-shaped flange 5 integrally connccted to the cylindrical side wall 3. The hollow body 2 is ma(te o~ mat,crial impenetrable -to light.
A rotary shaft 6 is provided at the a~ial center part of the hollow body 2 and slidably extellds through the annular cover plate 4. The rotary shaft 6 has a length substantially twice as long as thc a~ial length of the hollow body but may have the length much longer than the twice thereof. Provided at the lower end of the rotary shaft 6 is an end disc 7 having a diameter slightly larger than the inner diameter of thc cylin-drical side wall 3 so as to close the lower end of the cylindrical side wall 3 when the rotary shaft 6 is raised to a predetermined level. The end disc 7 has small apertures 8 and 9 on the upper and lower surfaces thereof, which are communicated with each othcr by angled or bent passages 10 so as not to allow any light from the lowcr surface of the disc 7 to bc penc-trated to the upper surfacc thcreof. 'ilhe rotary ~haft 6 is ~lso provided at the intermecliatc portion thereof with an annular plate 11, the diameter of wllicll i.s .~light;ly smaller than thc inllcr d:iamcl,el o~ t,hc cylill(l~ical .s:idc wall 3 so as to bc inserted into the hollow bocly 2 wlle the rotary shaft 6 is raiscd upwal-~lly. ~'hc xpacc 1079~08 bctweell the e1lcl d:isc ~ and anl-ular plate 11 is made to substantially corrcspond to thw width of a film to be developcd. The lowcr part of the rotary s}laft 6 between the end disc 7 and tlle annular plate 11 is providcd with a slit 12 into which an end of the film is inserted and held as described hereinafter. Also providcd at the upper end of the rotary shaft 6 is a rotary disc 13 upon which a rotary knob 14 is ecccntrically mounted, so that by rotating the knob 14, the shaft 6 is rotated together with the rotary disc 13.
Preferably, the end disc 7 is providcd witll an upwardly projecting annular thin flexible flange 15 and the lower open end of the cylindrical side wall 3 is provided with an annular projecting rim 16, wllerein the diameter of the flange is made slightly smaller than that of the rim 16. Accordingly, when the rotary shaft 6 is raised upwarclly, the upper end of the flange lS comes to contact with the lower end of the rim 16 and is then snugly engaged therewith by snap action.
P~eference is now made to the manner of usage of the present film developing device with reference to Figs. 3 through 5.
The rotary shaft 6 of the present device ta1~es a lowered position as shown in F`ig. 3, in whic}- -the lower part of the rotary shaft betweell the end disc 7 and the annular plate 11 is exposed outsidc of th~ llollow body
2. At this position of the rotary shaL`t 6, an cnd cf the photograpllcd roll f:ilm 17 is pull out; of thc magazine 18 ancl inscrted :into tllc slit 1~ in tl~e rotaJy shaft 6 to pass therctllrougll. Thc cncl of th~ film 17 ext;elldillg beyond the slit 12 is bellt alorlr~ the outer surfaee of the rotary shaft 6 and firmly hcld tllereoll by a semi-cylindrical flcxible plastic membcr 19 srlu~ly engaged upon the elld of the film 17 an(l thc rotary shaft 6 by snap action. Aftcr firmly holding tlle end of the film 17 to the rotary shlft; 6, the magazille 1~ as wcll as the lower part of the rotlry .shaf`-t 6 aI'e i nscrtecl into a known dark bag or a i`i.lm challgcr 20 (showll by a chain linc) which prov:ide dark place for the film to be wound on the rotary shaft. Then, by holding and rotating the knob 14 on the rotary di.se 13 integral wit]l the rotary shaft 6, the photograplled film 17 in tlle magazine 18 is wound to the lower part of the rotary shaft 6.
At the final stage of winding of the film, an end por-tion of the film connected to a spool of the magazine is eut out in the dark bag or film ehanger 20 and eompletely wound on the rotary shaft. After winding of the film 17, the rotary shaft 6 is rai~scd to an upper position shown in Fig. 4 wherein tlle wound film 17 is contained in the hollow body 2 alld thc lower open end of the cylindrical side wall 3 is closed by the end disc 7 due to snap engagement therebetween, whereby the film 17 is completely encloscd by the hollow body 2 and the encl disc 7. Then, the present device 1 is taken out of the dark bag or L`ilm challgcr 20 as shown in Fig. 4 but the film 17 tlu~tcill CallllOi, be exposed to any cx-iernal ligllt.
Thereafter, thc prcsen-t clevice in tllc state sllow in Fig. 4 is placed above a clevelopel casi lI~g 21 con-taining liquicl developcl- 2 theleill allcl scenrc~d tc-~o7sl08 temperature controll chamber 23 filled wit]l }-ot water 24, as shown in Fig. 5. The temperature control chamber 23 is covercd with a light-;mpenctrable cove}illg plate 25 except for the open end portions of the developer casings 22. The covering plate 25 has ann-llar flanges 26 provi;ded to encircle the open end portions of the developer casings 22. The skirt-shaped flallge 5 of the present device is snugly engaged with thc~ annular flange 26, whereby the inside of the developer casing 22 is shut out of the exterior thereof so that no light is allowed to enter into the developer ca~sing. After engaging the skirt-shaped flange 5 of the present device with the annular flange 26 of the covering plate 25, the rotary disc 13 as well as the rotary shaft 6 is pushed down, whereby the snap engagement bctween the end disc 7 and the lower end of the cylindrical side wall 3 is released and the film 17 about the lower part of thc rotary shaft 6 is immersed in the developcr 22 as shown in Fig. 5. At this position of the film, the rotary disc 13 is rotated by the knob 14 in the clockwise and counterclockwise directions s~lccessively in turn for predetermined number of rotations in each direction and for a predetermined time period.
Accordingly, the film 17 at the lower part of the rotary shaft 6 is rollcd up and do~n repcl~edly ill -turn by the rotation of the rotary shaf-t 6, wllereby developing process is carIiecl out by thc~ St,~ I'i llg of the liquicl developcr.
After one developitlg pI'OCC'.i.S i~s completed in the developer CaS:illg 21, thc film 17 is a~ain rolled up about the lower part of the rclt.aIy shaft ~ ancl thell thc rotary shaft 6 is raised to contain the film 17 in the elosed space inside of the hollow body 2 above the end dise 7. At this time, any liquid on the cnd disc or in the elosed spaee is drained through tlle apelatures 8 and 9 and the bent passages 10 in the dise 7. Thus, after completion of one developing process, the pi~esent device take the same state as shown in ~ig. 4, whicll is fur-ther plaeed above the other developer easing 21t and operatcd in the same manner as set forth above.
Like operation of the present device is carried out repeatedly until the final developing process of the film.
Another embodiment of the present invention is shown in Fig. 6. In this embodiment, the hollow body 2 of the film developing device 1 is provided with a vertieal slit 27 thrnugh the eylindrical sidc- wall 3, whieh slit 27 extends from the lower free end of the eylindrieal si.de wall to the upper end thereof adjaeen-t to the annular eover platc- 4. This slit 27 is covered with light-impenetrable brush 28 attached -to both opposite ends of the eylindrieal side wall 3 defining the slit 27 therein but allows the film to pass therethrough. The skirt-shaped flange 5 of thc deviee shown in the first embodiment is omitted in the seeond embodiment. ~ther features of thc SCCOIICI CmbOCIimCllt, are substantially samt as those of -the fi rst emboclimcllt.
In the film developillg device of the .iecond em-bodiment, when the photographed film in tlle magazine is to be woull(1 on the rotary .sllaf-t 6 of tllc~ clcvice, the iu ~i~
outer end of thc fillll is first sccurcd to ~he rotary shaft 6 as in the case of the first embodiment. Then, the rotary shaft 6 is raised while the upper edge of the film is inserted into the slit 27 formed through the cylindrical side wall 3 to allow both of the rotary shaft 6 and the film to be raised togetller. In this state, a tangentially projecting film outlct of the magazine can be partially inserted into the slit 27 covered by the brush 28, so that the winding of the photographed film in the magazine onto the rotary shaft 6 can be carried out without using dark bag or dark film changer.
When the film wound to the rotary shaft 6 is to be developed in a developer casing, it is unnecessary in the second embodiment to mal~e the developer casing and the covering plate thereon impcnetrable to light, because the hollow body 2 of the developing device 1 in the second embodimcnt carl be immersed into the liquid developer while the rotary shaft 6 is at the raised position. That is, when the hollow body 2 is immersed into the liquid developer, the developer can immediately enter into the hollow body around the film through the slit 27, so that the developing process can be carried out by rotating the rotary shaf-t as in the case of the first embodiment.
Although the present invention has bcetl described with reference to preferred embodimetlts ~hereof~ many modifications and al-terations may be made l~;thin the spirit of the present invell-tioll.
1()
At the final stage of winding of the film, an end por-tion of the film connected to a spool of the magazine is eut out in the dark bag or film ehanger 20 and eompletely wound on the rotary shaft. After winding of the film 17, the rotary shaft 6 is rai~scd to an upper position shown in Fig. 4 wherein tlle wound film 17 is contained in the hollow body 2 alld thc lower open end of the cylindrical side wall 3 is closed by the end disc 7 due to snap engagement therebetween, whereby the film 17 is completely encloscd by the hollow body 2 and the encl disc 7. Then, the present device 1 is taken out of the dark bag or L`ilm challgcr 20 as shown in Fig. 4 but the film 17 tlu~tcill CallllOi, be exposed to any cx-iernal ligllt.
Thereafter, thc prcsen-t clevice in tllc state sllow in Fig. 4 is placed above a clevelopel casi lI~g 21 con-taining liquicl developcl- 2 theleill allcl scenrc~d tc-~o7sl08 temperature controll chamber 23 filled wit]l }-ot water 24, as shown in Fig. 5. The temperature control chamber 23 is covercd with a light-;mpenctrable cove}illg plate 25 except for the open end portions of the developer casings 22. The covering plate 25 has ann-llar flanges 26 provi;ded to encircle the open end portions of the developer casings 22. The skirt-shaped flallge 5 of the present device is snugly engaged with thc~ annular flange 26, whereby the inside of the developer casing 22 is shut out of the exterior thereof so that no light is allowed to enter into the developer ca~sing. After engaging the skirt-shaped flange 5 of the present device with the annular flange 26 of the covering plate 25, the rotary disc 13 as well as the rotary shaft 6 is pushed down, whereby the snap engagement bctween the end disc 7 and the lower end of the cylindrical side wall 3 is released and the film 17 about the lower part of thc rotary shaft 6 is immersed in the developcr 22 as shown in Fig. 5. At this position of the film, the rotary disc 13 is rotated by the knob 14 in the clockwise and counterclockwise directions s~lccessively in turn for predetermined number of rotations in each direction and for a predetermined time period.
Accordingly, the film 17 at the lower part of the rotary shaft 6 is rollcd up and do~n repcl~edly ill -turn by the rotation of the rotary shaf-t 6, wllereby developing process is carIiecl out by thc~ St,~ I'i llg of the liquicl developcr.
After one developitlg pI'OCC'.i.S i~s completed in the developer CaS:illg 21, thc film 17 is a~ain rolled up about the lower part of the rclt.aIy shaft ~ ancl thell thc rotary shaft 6 is raised to contain the film 17 in the elosed space inside of the hollow body 2 above the end dise 7. At this time, any liquid on the cnd disc or in the elosed spaee is drained through tlle apelatures 8 and 9 and the bent passages 10 in the dise 7. Thus, after completion of one developing process, the pi~esent device take the same state as shown in ~ig. 4, whicll is fur-ther plaeed above the other developer easing 21t and operatcd in the same manner as set forth above.
Like operation of the present device is carried out repeatedly until the final developing process of the film.
Another embodiment of the present invention is shown in Fig. 6. In this embodiment, the hollow body 2 of the film developing device 1 is provided with a vertieal slit 27 thrnugh the eylindrical sidc- wall 3, whieh slit 27 extends from the lower free end of the eylindrieal si.de wall to the upper end thereof adjaeen-t to the annular eover platc- 4. This slit 27 is covered with light-impenetrable brush 28 attached -to both opposite ends of the eylindrieal side wall 3 defining the slit 27 therein but allows the film to pass therethrough. The skirt-shaped flange 5 of thc deviee shown in the first embodiment is omitted in the seeond embodiment. ~ther features of thc SCCOIICI CmbOCIimCllt, are substantially samt as those of -the fi rst emboclimcllt.
In the film developillg device of the .iecond em-bodiment, when the photographed film in tlle magazine is to be woull(1 on the rotary .sllaf-t 6 of tllc~ clcvice, the iu ~i~
outer end of thc fillll is first sccurcd to ~he rotary shaft 6 as in the case of the first embodiment. Then, the rotary shaft 6 is raised while the upper edge of the film is inserted into the slit 27 formed through the cylindrical side wall 3 to allow both of the rotary shaft 6 and the film to be raised togetller. In this state, a tangentially projecting film outlct of the magazine can be partially inserted into the slit 27 covered by the brush 28, so that the winding of the photographed film in the magazine onto the rotary shaft 6 can be carried out without using dark bag or dark film changer.
When the film wound to the rotary shaft 6 is to be developed in a developer casing, it is unnecessary in the second embodiment to mal~e the developer casing and the covering plate thereon impcnetrable to light, because the hollow body 2 of the developing device 1 in the second embodimcnt carl be immersed into the liquid developer while the rotary shaft 6 is at the raised position. That is, when the hollow body 2 is immersed into the liquid developer, the developer can immediately enter into the hollow body around the film through the slit 27, so that the developing process can be carried out by rotating the rotary shaf-t as in the case of the first embodiment.
Although the present invention has bcetl described with reference to preferred embodimetlts ~hereof~ many modifications and al-terations may be made l~;thin the spirit of the present invell-tioll.
1()
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A device for developing a photographed film by rolling up and down said film in a liquid developer comprising a hollow body opened at the lower end thereof, a rotary shaft axially extending through said hollow body to be slidable thereto and having a length long enough to extend beyond the lower free end of said hollow body, and a disc attached to the lower end of said rotary shaft and adapted to close said lower end of said hollow body when said rotary shaft is raised to a predetermined level.
2. A device as claimed in claim 1, wherein said rotary shaft has an annular plate attached thereto above said disc with a space substantially correspond-ing to a width of the film to be developed, said annu-lar plate having a diameter smaller than that of said hollow body.
3. A device as claimed in claim 1 further com-prising a means for temporarily connecting said disc to the lower end of said hollow body when said rotary shaft is raised to the predetermined level.
4. A device as claimed in claim 1, wherein said disc has apertures on the upper and lower surfaces thereof, said apertures being communicated with each other by bent passages not to allow light to be pene-trated from the aperture on one surface to the other aperture on the other surface.
5. A device as claimed in claim 1, wherein said hollow body has a slit extending upwardly from the lower end thereof, said slit being covered with a brush not to allow penetration of light through said slit.
6. A device as claimed in claim 1, further com-prising a rotary disc attached to the upper end of said rotary shaft, and a knob mounted upon said rotary disc to be eccentrical relative to said rotary shaft.
7. A device as claimed in claim 2, wherein said rotary shaft has a length substantially twice as long as said hollow body and a slit for engaging the end of the film is provided through said rotary shaft between said disc and said annular plate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13047476A JPS5356025A (en) | 1976-11-01 | 1976-11-01 | Device for developing photographic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1079108A true CA1079108A (en) | 1980-06-10 |
Family
ID=15035099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA289,917A Expired CA1079108A (en) | 1976-11-01 | 1977-10-31 | Light tight film holder for processing roll film |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4134666A (en) |
| JP (1) | JPS5356025A (en) |
| CA (1) | CA1079108A (en) |
| DE (1) | DE2748778A1 (en) |
| FR (1) | FR2369597A1 (en) |
| GB (1) | GB1589379A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4188106A (en) * | 1978-10-06 | 1980-02-12 | Eastman Kodak Company | Apparatus and method for processing film |
| US4440490A (en) * | 1981-11-04 | 1984-04-03 | Ciba-Geigy Ag | Combined masking frame and photographic sheet material container |
| EP0078773B1 (en) * | 1981-11-04 | 1985-02-06 | Ciba-Geigy Ag | Combined film cassette, extraction and developing device |
| GB8427101D0 (en) * | 1984-10-26 | 1984-12-05 | Ciba Geigy Ag | Processing device |
| DE3470964D1 (en) * | 1983-11-23 | 1988-06-09 | Ciba Geigy Ag | Processing device for exposed photographic material |
| US4601566A (en) * | 1984-08-10 | 1986-07-22 | Luis Bernhard | Daylight multi-reel film loader and developing tank |
| US4678309A (en) * | 1985-03-07 | 1987-07-07 | Ciba-Geigy Ag | Device for processing a role of exposed film coiled on a spool |
| GB8505843D0 (en) * | 1985-03-07 | 1985-04-11 | Ciba Geigy Ag | Processing device |
| GB8516055D0 (en) * | 1985-06-25 | 1985-07-31 | Ciba Geigy Ag | Processing device |
| GB8516057D0 (en) * | 1985-06-25 | 1985-07-31 | Ciba Geigy Ag | Turning device |
| US4757339A (en) * | 1986-02-10 | 1988-07-12 | Noritsu Kenkyu Center Co., Ltd. | Disc film treating cassette |
| GB2334113A (en) * | 1998-02-04 | 1999-08-11 | Edward William Armstrong | Film reel loader |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3724353A (en) * | 1970-10-30 | 1973-04-03 | H Holbert | Automatic line traverse and dip film processor |
| US4011573A (en) * | 1974-12-23 | 1977-03-08 | Rinn Corporation | Apparatus for developing dental X-ray films |
-
1976
- 1976-11-01 JP JP13047476A patent/JPS5356025A/en active Pending
-
1977
- 1977-10-28 FR FR7732575A patent/FR2369597A1/en active Granted
- 1977-10-31 DE DE19772748778 patent/DE2748778A1/en not_active Withdrawn
- 1977-10-31 CA CA289,917A patent/CA1079108A/en not_active Expired
- 1977-10-31 US US05/847,473 patent/US4134666A/en not_active Expired - Lifetime
- 1977-11-01 GB GB45432/77A patent/GB1589379A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2748778A1 (en) | 1978-05-03 |
| GB1589379A (en) | 1981-05-13 |
| FR2369597B3 (en) | 1980-08-08 |
| JPS5356025A (en) | 1978-05-22 |
| FR2369597A1 (en) | 1978-05-26 |
| US4134666A (en) | 1979-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1079108A (en) | Light tight film holder for processing roll film | |
| US4608614A (en) | Apparatus for threading magnetic tape in a magnetic tape transport | |
| US4272035A (en) | Light lock for roll dispensing container | |
| JPS6350693B2 (en) | ||
| LU84203A1 (en) | MAGNETIC DISC CARTRIDGE | |
| EP0019986A2 (en) | Photographic film cartridge assembly | |
| AU634256B2 (en) | Film cassette having film-exposure status indicator | |
| KR910008481A (en) | Film cassette | |
| GB2168698A (en) | Aryl nitrones and their use as contrasting agents | |
| CA1089691A (en) | Photographic development by rotating film discs in processing baths | |
| US6447176B2 (en) | Film canister device for use in a film package assembly and a method for loading a camera therewith and a camera loadable thereby | |
| CA1237934A (en) | Developing drum | |
| JPS58100849A (en) | Combination unit for withdrawing and treating film from cassette | |
| US4254919A (en) | Method of loading film cassette | |
| US4518240A (en) | Photographic print making and developing tray assembly | |
| US4821079A (en) | Test Photographic image easel | |
| US3820738A (en) | Magazine for a reel | |
| US4436401A (en) | Tank with light-tight closure | |
| US4081806A (en) | Camera | |
| US2982195A (en) | Film developing tank | |
| GB2090429A (en) | Developing cine film | |
| US6000863A (en) | Photographic processing method | |
| DE69712024T2 (en) | Process for making a photographic film cassette | |
| US4664498A (en) | Film-processing apparatus | |
| JPS6035065Y2 (en) | photo film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |